1 | /* $NetBSD: syslimits.h,v 1.28 2015/08/21 07:19:39 uebayasi Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1988, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. Neither the name of the University nor the names of its contributors |
16 | * may be used to endorse or promote products derived from this software |
17 | * without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | * |
31 | * @(#)syslimits.h 8.1 (Berkeley) 6/2/93 |
32 | */ |
33 | |
34 | #ifndef _SYS_SYSLIMITS_H_ |
35 | #define _SYS_SYSLIMITS_H_ |
36 | |
37 | #include <sys/featuretest.h> |
38 | |
39 | #if defined(_KERNEL_OPT) |
40 | #include "opt_syslimits.h" |
41 | #endif |
42 | |
43 | #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ |
44 | defined(_NETBSD_SOURCE) |
45 | #define ARG_MAX (256 * 1024) /* max bytes for an exec function */ |
46 | #ifndef CHILD_MAX |
47 | #define CHILD_MAX 160 /* max simultaneous processes */ |
48 | #endif |
49 | #define GID_MAX 2147483647U /* max value for a gid_t (2^31-2) */ |
50 | #define LINK_MAX 32767 /* max file link count */ |
51 | #define MAX_CANON 255 /* max bytes in term canon input line */ |
52 | #define MAX_INPUT 255 /* max bytes in terminal input */ |
53 | #define NAME_MAX 511 /* max bytes in a file name, must be */ |
54 | /* kept in sync with MAXNAMLEN */ |
55 | #define NGROUPS_MAX 16 /* max supplemental group id's */ |
56 | #define UID_MAX 2147483647U /* max value for a uid_t (2^31-2) */ |
57 | #ifndef OPEN_MAX |
58 | #define OPEN_MAX 128 /* max open files per process */ |
59 | #endif |
60 | #define PATH_MAX 1024 /* max bytes in pathname */ |
61 | #define PIPE_BUF 512 /* max bytes for atomic pipe writes */ |
62 | |
63 | #define BC_BASE_MAX INT_MAX /* max ibase/obase values in bc(1) */ |
64 | #define BC_DIM_MAX 65535 /* max array elements in bc(1) */ |
65 | #define BC_SCALE_MAX INT_MAX /* max scale value in bc(1) */ |
66 | #define BC_STRING_MAX INT_MAX /* max const string length in bc(1) */ |
67 | #define COLL_WEIGHTS_MAX 2 /* max weights for order keyword */ |
68 | #define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */ |
69 | #define LINE_MAX 2048 /* max bytes in an input line */ |
70 | #define RE_DUP_MAX 255 /* max RE's in interval notation */ |
71 | |
72 | /* |
73 | * IEEE Std 1003.1c-95, adopted in X/Open CAE Specification Issue 5 Version 2 |
74 | */ |
75 | #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ |
76 | defined(_NETBSD_SOURCE) |
77 | #define LOGIN_NAME_MAX 17 /* max login name length incl. NUL */ |
78 | #endif |
79 | |
80 | /* |
81 | * X/Open CAE Specification Issue 5 Version 2 |
82 | */ |
83 | #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) |
84 | #define IOV_MAX 1024 /* max # of iovec's for readv(2) etc. */ |
85 | #define NZERO 20 /* default "nice" */ |
86 | #endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */ |
87 | |
88 | #endif /* !_ANSI_SOURCE */ |
89 | |
90 | #endif /* !_SYS_SYSLIMITS_H_ */ |
91 | |